The Volt also required a $2000 220v CopperCreek charger as quoted by the dealer. I did not include the $500 cost to install this in my garage.
The Volt requires no such charger. It comes with a Level 1 charger in the trunk, and on the new 2016+ Volts with a $10 adapter that charger actually functions perfectly as a 240V Level 2 as well. I bet the dealer forgot to mention that while they tried to soak you an insane amount of money for a Level 2 charger that's not only in the trunk already, but if you needed a second, can be bought on Amazon for under $300.
It sounds to me like the dealer basically scared you away, opting to dump the Cruze on you instead at a much bigger profit margin vs what they would have made on the Volt.
THIS is why it's important to do your homework and fully understand a vehicle before just blindly letting the dealer get their hands on you and fill you full of their BS. THIS is the reason people go to the dealerships and get sold 1/2 ton pickup trucks to pull their 40' trailer "because the dealer said it'd tow it!" and then find out it doesn't work.
As for the rest of your argument, I think you should read some of the responses after your last one as much of this was hashed out.
In short, your numbers are wrong still. The old "you have to include all the other fees on top of that" argument was also dealt with - you're paying those fees anyways for the REST of your house usage, the sum of which far exceeds what a Volt would consume (charged once a day) over that month anyways. Yes, some fees are on a sliding scale, but still, you win win win no matter HOW you look at it.
Take a look at Steves bill breakdown - it's quite simple - your estimates of an average per kwh cost are wrong.